US1496164A - Tire carcass - Google Patents

Description

Patented une 3', 1924.

HOWARD r. nomas, or

Los memes, CALIFonNIA,

as srGNoB, 'ro ransom) MACHINE GQMPNY,"OF. CLEVELAND, OHQO, A. CORPORATION OF ARIZONA),

TIRE I application and august 14, 191s,

To all 'whomz't mai/concern.' Be it known that I ,HOWARD I. Moniga citizen of the United States, residing at Los Angeles, in the county of Los Angeles an State of California, have invented new and useful Improvements in T-ire Careasses of which the followingr is a specification.

' This invention -ielates to tires and tire beads andv 1in ateri'als.for saine, being; witl 1 resplect to the fabric for tires and tire" beads,' suc a product orarticlc of manufacture, in varioi s forms and organizations, .as lis capable of Amanufacture '1n the use of vmaterial 1 and tire-making machines for'whichI have l'i'ippliedfor Letters Patent of the ,'United States in an application :execute iby me August :1st, 1918, preparatory to ling A.the

saine in tl1`e Unite StatesPatent O ldce. The present invention 'contemplates a 2o product composite of lspaced tire bead elenients and windings 'for wrappings df\ tiref coords" body material, suc-has te'xtilefstrands, lor threads, and by preference one or` more sheets or'l strips :orQlayers or courses 0f "furtheitire material, suchI ns rubberA or rubberiinpregnated textile material.` -Where one of said.: sheets or strips of further tire material,l is employed, the windings or wrappings vmay be ap lied to and over it and z "preferably uroun ora-bout the tire bead elements, so as Ato enclose or envelope such further. sheet or strip of tire material. These Velements are referably consolidated or pressed together between the parallel tire :15 'bead elements, which'are provided at. the

sides of the tire body material, and the second or further tire material 'strip or' sheets consolidated with such elements and overlying one course or layer o f thetwindings or wrappings, and between the tire bead elements at the sides or edge portions of the material. A product so produced may readily be formed into. a tire or .tire carcass, in the manner "set forth Ain said application hereinabove identified, 'by 'feeding or sup'- plying such tire material and bead material to a suitable core, and forming the ltire on .the core, in successive Alaps or coursesgas the 'tire and tire ,and suitably rolled down and pressed into final form, togetherwith'its bead lelements at its sides. y A It will be seen that the invention concerns,- as tothe tireA and tire bead fabric side theredl type,' having both bead elements and tire Ts'tance" of the present also, 'uponfthe' tire `and tirebead side the invention relates "skilled in the art,

" and beads of 'the seraritoreaasu. nm'wea April so, 192s.

of, a strong, durable, and readily worked or' fabricated and convenientliyeutilized material o r fabric, which may of the cord body elements, and from which tire bodies and tire beads mar readily be roduced and ,organized .pon its othersi e, the inven- 'tionrelates-totires and tire beads capable `of convenient,`speedyI` and thoroughly satis- ,factory roduction from or by the utilization or "emp oyment of the tire andtire bead fabric ormoditicatiois thereof, lwhich like- '1 wiseV are 'included within the scope and subinvention.- And that to' further structural adjunctsa'nd features," of high advantage, as will be'appreciated, with all the other aspects 'and' features of the invention, by those and including such factors or integersv as the bead jacket or envelope or covermembers', and the interlocking strips,

. andthe filler material, which, .together with 4the other bead elements'or courses thereof -is'confined within such jacket' or envelope. SQ It' will b e understood that the tire and bead 'features of t e present invention are notv 1 hunted "to the employment of the exact tire and bead fabric,' which is hereinafter di'sclosed,l nor are the tire and bead fabric features ofthe invention to be limited-to tires exact organization' herein disclosed. However, the'tire and bead fabric features of the invention may well be utilized in constructing and producing tires and beads within the scope-and substance of the presentA invention. Otheriobjects of the invention will be obvious to those skilled in the art to which m `invention relates taken in connection wit the: following description and accompanyin drawings.

" n the drawings: Figure 1' is a fragmentarycross view illustrating a platen in connection with sectional 10o which certain lsteps-in the production of the tire and bead fabric 4may effectively be taken,

tire bead members or elements being shown bead material is fed theredisposed at to the tire thus being built up progressivelyif'elernent,together with a spacer the sides thereof, and a tire body sheetorios' strip which serves as a carrier or conveyer for said-further' tire body material, the latf ter being shown .above the laten;

Figure 2 is aview -simi ar to FigureY 1,"A

with the additionalshowing of wrappngs'in or windings of tire material which is applied to and around the tire body and bead elements.A

Figure 3 Ais 'a view similar to Figure 2, 5 but illustrating the tire bead' elements or lmembers and the textile cord wrappings or windings, together with the sheet. of further tire body material, all shown in Figure 2, after the same have been subjected to pressure orconsolidated together, there being further shown a second sheet or strip of tire body material consolidated with the members or elements just recited, and applied over the uppermost course or layer of textile strand wrappingsor windings, and between the tire bead elements or members;

Figure 4 is a fragmentary face or plan view of the compltedtire material shown inFigure. 3, the same being sectioned and broken away to clearly disclose the lower formation of the wrappings or windings; Figure 5 is a cross section of a core upon which tir'es are to be formed` there being shown uponl the same successive layers or courses of the tire and bead fabric shown in Figures. 3 and 4, the bead structure being in process of rollingdown or pressing ,or consolidating Figure 6 is la'fragmentary View similar to Figure 5, showing the .formation in the bead-forming pocket of-a bead structure for a straight side tire; y Figure 1 is a fragmentary view of a portion of the structure shown in Figure f, inf

v3`5'e1uding; the' completed bead structure,"the

' jacket or envelope orcover strip' having been given its final fold and having been rolled down'into its final position to entirely enclose the completed bead structure: and,

' 40 Figure 8 is a viewsimilar to Figure 6 showing the bead structure of a straight side tire undergoing formation by press.v

ing 0i" rolling down or consolidating. In this view, likewise, metallic strands of bead material are substituted for the textile strands shown in Figure 5, Athe strands A shown in Figures 6 and 7 being likewise preferably metallic in ,multiple formation. Fig. 9 is a fragmentary view of a tire carcass with portions of the tire body; broken away to show the bead material. In Figures l to 4 inclusive, the bead members or elements are shown in a conventional way as strands which may be. either metallic. or

textile or of any other suitable material.

l Referringto Figs. l to Y, inclusive, A designates a bead element or member, and in Figure 8 Bdesignates a bead element or member, both being associated with tire *00 body material (l, which in Figures 5, (l. 7

and 8 is only conventionally shown as inaterial wrapped or wound about the bead elements A and B. Such generally designated tire body material C comprises a length or strip of rubberor rubberized material 9, wrappings or windings of textile cords or vstrands 10 which are produced, developed or applied aroundor about the tire 'bead elements A,- and a further strip or sheet of `a 'machine such as that disclosed in the '11ii above-identified co-pending application. I u accordance 'with general practice, a platen 12 may .be employed, the same having curved or channeled side flanges l2 along which the bead elements ,i may be suitably fed, andthe first sheet!) of tire body material may be fed-over said platen by and conveyed upon a spacer sheet 12.b of muslin or the like which in any suitablemanner is first advanced with and under the Vsheet or strip 9 and -then reversed in its course and suitably taken up, passing above the'u per surface of .the platen 12. lVhiley the s ieet or strip 9 is thus passing abovet-he platen and the bead elements Aare passing along 00 the sides of the platen, the cords or strands 10 of textile or other material are wound or wrapped about the bead elements A and aroundthe entire group of parts or features shown in Figure'l, so that there is suitably 95 drawn oft` from the' platen the bead 'elements A, the first tire body sheet or strip 9,and t-he windin s.or wrappings'lOwhich assume a helical ormation flattened .alon

its axis. This partially completed materia is then suitably vconsolidated or compressed, together with the second tire body sheet or striplll, intothe formation and organizationvshowny in Figure 3, with the bead elements A and'the wrappings thereon project- 105 ing above the plane of the remaining portion of the completed abric. This result may be 'produced b "the use ofsuitable grooved o1- channele rolls. The complet/ed material shown in Figures 3 and 41s then 110 readyl for incorporation in or development into a tire carcass having suitable bead structures at its opposite sides.

Giving attention now particularly to the tire and bead structures coming 'within .the 115 scope and pai-taking of the substance of the invention, Figures 5, 6, 7 and 8 disclose the same in different forms, the body portion C' .of the tire, namely, the body portion or portions between the. bead elements A or B being merely conventionally or diagrammaticallyA shown without a showing of the details` which maybe such as those disclosed in Figures 1 to 4, inclusive. These tire body portions C and bead elements A or B, with other adjuncts, about to be described, are I shown in Figures 5, 6' and 7A in process of being organized or formed into tires, in connectin with core devices D, such core devices being provided With bead rings d, of

' in forming b maaier which the bead ring shown in Figure is slightly upwardl arched or curved for use eadbs for clincher tires, While the bead ring shown in Figures G and 8 have 5 lane upper surfaces for usev in fornxing the ads of straight side tires. In Figure 5 is shown a presser roller 13 for forming and consolidating the bead structure, the same being channeled or concave in its periphery,

Us as at '13s, and designed to act upon the bead elements to produce a bead structure for clincher or clincher tires.

courses of bead elements A are pressed down and consolidated in the pocket formed be- 15 tween the bead ring d and the side of the y core D. Prior to the application of the tire forming material to\ the core a jacket or envelope or cover strip e, for the bead to be produced in the respective pocket, is applied SJ byhand or otherwise, within the concavity of such pocket between the bead ring and the coreproper, so as to leave one side of `the strip endent, until all of the overlying courses o the beadelements A have been lpressed and consolidated within the pocket y the presser member -or roller 13. Thereupon lthe presser roller is withdrawn from contact with the bead structure, and the pendent portion of the envelope or cover strip e is brought up over and outside of the last course of bead element, and the roller 13 again brought into contact therewith to thoroughly. apply the Asame to the outside bead element course and consolidate it therewith, in completion of the bead structure. f

It will be understood that the operation indicated in Figures 5, Gand 8 as concerned with/the 'formation of a bead at one side of 40 the 'tire' is duplicated in connection with 4.

theicore and a ead ring d at the other side ,ofithe tire. lh `Figure 6 is indicated the process 'of `ifprination of-a straight side tire in which $5 the eriphery 14 of the roller or presser mem rg14 is convex, and the bead structiire is flattened out in a pocket to produce a straight side formation. Similarly, a

` bead jacket or envelope or cover strip e isy utilized, in producing this form of beadl described.

Referring to Figure 7, thefinished bead structure, and. fragments o'f the tire body portion C, which are shown in Figure 6, are shown as removed from the core and the G0 bead ring, the bead envelope or jacketor cover strip e being shown as finally applied to and consolidated with the remaining portons of the bead structure. y

In Figure 8 the bead structure is shown 05 in process of formation in the-core pocket,

The overlyingy y connection and within the folds of the bead 'acket or envelope or cover strip e, and a ller material f is shown at first applied withinrthe pocket, that is, after the jacket or envelope or cover strip e is folded into the pocket. This filler material maybe textile or metallic, such as tapewhich is supplied as auxiliary bead material, in the operation of a machine such as that disclosed in the copending application above identified` or may be otherwise supplied to the core. This filler material is disposed within the innermost portion of the Abead jacket or envelope, and then the courses or layers of tire and bead material are applied to the core, alternating with interlockin tapes or strips g, which may likewise be ed vto the core from a suitable machine, 'in the form of auxiliary bead material, or may be otherwise suitably and expediently supplied. One of such interlocking strips, which mayconsist of tapeA and be of the same material as the filler material f, is applied next to the filler material, and a final interlocking strip is applied over the outermost course or layer of the bead material.` These interlocking strips g serve to impart inherent stability tothe and reinforce the same and prevent disassociatiou of 'its several component parts,r or courses of bea-d material. In the form of the construction shown in Figure 8 are disclosed metallic strands or cables h which are incorporated into the tire and'bead fabric in any suitable manner, as in the normal operation of a machine as above- .bead structure. and to generally strengthen referred to. such strands or-cables Ataking the place of the textile cords or strands indi'cated in the bead element showings in Figures 5, 6, and 7, the bead element showing in lyiigures/l to4 at A being, as above mentioned, merely conventional and not indicated to designate any particular or specific material. It will be vunderstood that in none of the Figures 1 tio 8 is it intended to limit the structures therein shown to any specific composition or constitution of bead element, whether textile, metallic or of other nature,

)the material `to be selected and employed' vbeing open td selection in accordance with the expediencies or requirements of the ticular surface under consideration. Y

The bead structure constituent as described and shown in Figure S is rolled down -by ar roll 15`having a concave portion 15 which operates at the zone of the cables or strands h, and a convex portion 15b which operates at the portions of the bead strucn ture just above such strands or cables. -The slight. rib remaining upon the side of the bead structure after its formation, is pressed fiat or reduced by the side plates used in with the -vulcanizing mold. After the Abead structure has been com leted to the stage shown in Figure 8, the Jacketv iso y material at each side.

stresses.

or cover strip or envelope strip e, at its pendent portion, is brought up about the remaining parts of the bead structure at the outside and rolled down upon the same, completely jacke-ting the bead structure.

A. radical departure from previous practice will be noted with respect to the present invention, among other things, in that the tire bead structure is. built up ot a plurality of overlying or superposed parts or elements, produced by applying course or layer after course or layer of the tire and 'bead fabric, so that each bead structure is coinposite ot a plurality of separate bead portions, the units of which group of bead poi'- tions are thereupon formed or pressed or consolidated together to produce the ultimate and final-bead structure. In other words, the present invention payes the` way' t'or building up and developing abead structure turn by turn or layer by layer or course by course, in continuous operation, and at the same time rolling down and consolidating such tire structure in its development, and this is performed coiiieidently with the torni-ation of thel tire body itself. comprising the tire body portion C, so that a progressive development and production of the tire. with its bead structure can be carried on as a continuing operation. and the bead structure may be rolled down and consolidated at the same time that the tire structure itself is rolled down and Jformed. Likewise, a. superior strength and durability and degree ot' stress resistance is imparted to the. tire and bead structure, iii that the fabric ot the tire struct-ure is wrapped or wound about the bead material, and this produces `a plurality oi courses or layers olY tire and bead material, as the development of the tire and bead progresses, each course. otl tireI material being intimately associated and positively connected with its course of bead Thus a permanent and durable tii'e and bead structure is produced in which the most permanent. relation between the bead and tire body elements is maintained in opposition to any disturbing inventionito provide the tire body with side bead material. about. or around which the material Aconstituting the tire body, is wrapped or wound, so as to iii'mly and permanently and intimately bind and associate suoli bead material with such the body inat-erial. The fact that tire material has heretofore been produced in which side cords or strands have been employed, and about which the. tire material has been wrapped or wound, is not pertinent to the present invention, because in no such case known to me have such side cords or strands evr been used or intended to be used for incorporation in bea-d structures, buthave only been used as temporary means for preventing endvvise It is believed to be novel with this stretch of the material, ano nave ordinarily been severed and removed from the material prior to its use in tire building.

It will be obvious that many modifications in the make-up and organization of the fabric for tires and tire beads, suoli as disclosed in the drawings, may Well be made, in practicing the invention, as by variation of the nature of the tire body strips 9 and 1l, of the Wrappings or windings 10, and of the bead elements A; and also that it is optional, within limits pt' convenience and etliciency, how such tire and bead material shall be produced, and its various parts or elements fabricated and brought into final usable form. Likeivise, it is obvious that any suitable and expedient means or accessory or adjunct may be employed in an operation or process or performance of Working up such tire material into tire carcasses, only one such method of performance being indicated in the drawings, as in Figures 5 to 7 inclusive, namely, by the use of a core and bead ring, togetherv with presser menibers or rollers as 13, let4 and 15, for forming and consolidating the bead structures. lt is further obvious that different type-s and forms of bead structures and tires may be evolved from the tire and bead material disclosed in the d `wings and heretofore described, and that many variations thereof may be utilized 'in the construction and formation and organization of such varying types and characters of tires., All ot these things will fall Within the true limits and boundaries of the invention, and will readily' adjust themselves to those skilled in the art and practicing such invention.

I do not desire that the invention be limited to details of disclosure herein and of the drawing, `other than as required by a fair and proper interpretation of the claims.

Having thus disclosed my invention, l claim and desire to secure by Letters Patent:

l. A tire carcass comprising a body portion and bead cores arranged at either side of and connected to said body portion, each core being formed from a continuous sec- ,tion of bead material and extending a plurality of times around the adjacent side of the tire carcass with their convolutions disposed side by side iii a plane substantially at right angles to the plane of the tire carand cords helcally 'disposed and wrapped a continuous length ot'vbead material coiled or Wound into a plurality of turns, a continuous length otl body' iiiate'rial disposed between the beads and wound into a plurality of turns, means for connecting the turns ot' bead material and body material together, and a cover for enclosing the turns of bead material at each side of the tire carcass.

4. A tire carcass formed from a continuf ous single section of composite material conj volutely wound to provide a plurality of g superposcd layers, said, section of material' length.

throughout its entire length comprising a body portion of rubber material, bead elements disposed along its opposite edges and continuous cords lielically disposed and embedded in the rubber and extending around the beads to connect them to the opposite edges of the rubber material throughout its 5. A tire carcass formed from a continuous web of composite material having contiguous beads along its opposite edges Wound convolutely and interlocking strips between adjacent turns of the beads. i

6, A tire carcass formed from a continuousvveb of composite material having contiguous beads along its opposite edges wound l convolutely and interlocking strips between adjacent turns of adjacent turns of the beads, said strips extending from thelbeads upwardly toward the tread portion of the carcass.

7. A tire carcass formed from a continuous web of composite material having contiguous beads along its opposite. edges wound convolutely and interlockingstrips between the. beads, and. a cover for enclosing the turns of each bead and the interlocking strips between them.

8. A tire carcass formed from `a single length of a convolutely'wound composite web comprising alternate layers of sheet rubber and helicall'y "disposed continuous cords with. bead'cores extendin Y alongftlie opposite edges of one of the rn ber sheets, the cords enveloping tlie-corcs to 'connect them to the edge of the last mentioned rubybersheetthroughout the length thereof.

9. A` tire carcass including side bead cores each formed from sections of ccmpressible material and strandsl and a bpdy materiall comprising strands in continuous formation wrap ed around the bead cores in progressive helical-arma ement and subsequently flattened, the bead cores being shaped in and tire bead material at the side the final formation of the tire carcass into beads. Y l0. A tire including a series of similar supcrposed elements, each of which includes side bead cores of compi'cssible material, and a body material comprising cords Wrapped around the bead cores in progressive helical formation and subsequently iattei'ied in layers of oppositely inclinedI transversel extending cords, the tread of the tire includ):

ing the cord layers of tlie several elements 'y and the beads of the tire including the several bead cores which are fiattened and shaped in the formation ot the beads. A11. A tire comprising a convolutely wound composite web having bead cores and a bdy material consisting of a sheet of rubbeixand strands wrapped around the bead.

cores in progressive helical formation and embedded in the rubber sheetto form superposed layers of rubber and strands, and a. cover for lenclosing theturns of bead material at each side vof .the tire. i I

12. A tire, comprising' tire body matrial e s thereof, said tire body material and said tire bead material being rovided in superficial comprising tire body vmaterial material, a' bead cover strip for enveloping the. bead, and bead filler material introduced Within the cover strip and between the cover strip and the main bead material; said bead cover r 4 ed to be sealed over the finished bead structure.

In testimony whereof, I have .signed my name to this specification in the presenceiof two subscribing witnesses.

HWARD if; MORRIS..-

Witnesses: f

RAYMOND Ives BLAKEsLEn, J. SHU'rr.

strip being adapt-A

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